Safety razor



Feb. 7, 1939. B. E DAVIS ,1

SAFETYIRAZOR Original Filed March 1, 1934 4 Sheets-Sheet l 7 I 1? 14 32 V53 51 3'4 1' 6 v 1a 16 ATTORNEY Feb. 7, 1939.

B. E. DAVIS 2,145,920

SAFETY RAZOR Original Filedljiarch l, 1934 4 Sheets-Sheet 2 IN V E N TO R fife/MPO 5. 0414s BYgg ATTORNEY Feb. 7, 1939. B/E. DAVIS 2,145,920 V SAFETY RAZOR ori inal Filed March 1, 19:54 4 Sheets-Sheet s INVENTOR Feb. 7, 1939. B. E, DAV|S 2,145,920

- SAFETY RAZOR I Jriginal Filed March 1, 1934 4 Sheets-Sheet 4 mvzw-ron flsemeo 5. 0414s ATTO NEY Patented Feb. 7, 1939 UNITED STATES PATENT OFFICE T auam mfifilrmsr.

Application March 1; 1034, Serial No. 113,504 Renewed June 11,1930

#3 Claims. (Cl. 30-40) My present invention relates to razors, and

type of safety razor. I

There have been many attempts'made in the past to provide a safety razor of the magazine type. These prior devices have either proven cumbersome in usage or incapable of competition with refillable safety razors because of excessive manufacturing costs. Accordingly it may be stated that it is one of the main objects of the present invention to provide a safety razor of the magazine type which is compact, economical'in usage and cost, and highly efllcient in shaving.

Another important object of the invention is to provide a safety razor which generally com- I prises a casing having a plurality of spaced blades carried by spaced endless belts between a pair of spaced prismatic devices, the faces of one of the'devices functioning as blade carrier faces. 20 Another object of the invention is to provide a safety razor including a revolvable blade carrier device, the device being provided with means for automatically moving the razor blade clamp'out of clamping position when the device'is adJusted to change a blade.

The novel features which I believe to be characteristic of my invention are set forth in particularity in the appended claims. The invention itself, however, both as to its organization and 30 method of operation, will best be understood by reference to the following description, taken in connection with the drawings, in which I have indicated diagrammatically several c nstructions whereby my invention may be carried into eifect. 35 In the drawinssz- Fig. 1 shows a sectional view of the razor, looking in the direction of the arrows, taken along line l--l of Fig. 2, Fig. 2 is a side view of the razor with one of 40 the side walls removed,

Fig. 3 is a sectional view taken along line 3-4 in Fig. 2 and looking in the direction of the arrows,

Fig. 4 is a sectional view along lined-4 in 5 Fig. 2'looking in the direction of the arrows,

Fig. 5 is an end view of the razor as shown in Fig. 2, showing the head of the device arranged for operation,

Fig. 6 is a side view of the support frame, 50 Fig. 7 is a plan view of the detail shown in Fig. 8 is a detail view of one of the combined blade support and belt driver devices,

G. 10 shows a modified form of blade and carrier,

Fig. 11 shows a further modified form of blade and carrier, Fig. 12 is a sectional view of another form of 5 blade and carrier construction,

Fig. 13 is a view similar to Fig. 9, adapted for use with a carrier of the type shown in Fig. 12,

Fig. 14 is a partial side view of the operating head of a modified form of the invention, 10

Fig; 15 is a front view of still another modiiication of the invention,

-Fig.' 16 is a view taken along line lB-IG in Fig. 15 "looking in the direction of the arrows.

Referring now to the accompanying drawings, 15 wherein like reference characters in the different views designate similar structural elements, there is shown in Fig. 2 an assembly view of a safety razor which essentially comprises a casing I, a blade conveyor 2, a pair of multi-function prisms go -5, 5', a plurality of blades 6, a blade clamp I and a spacer frame 8. The embodiment shown in Fig. 2 has its casing I constructed of relatively thin suitable material. Such material may be sheet metal, phenol condensation products, hard rubber and the like. However, the ends of the side walls, acting as bearings for prisms 5, 5 are to be springy or resilient. The casing, as shown in Fig. 3, has .a rectangular cross section, the rear wall I being secured to the main body in any desired manner. It is to be understood that the casing walls may be integral with each other or separable. I

The operating end of the casing, or head thereof, is provided with clamp 1. The latter is pivotally secured to the side walls of casing i by securing it at the ends 9 of itstop edge to the side walls of the casing adjacent the bottom face of the front edge of the top wall of the casing. Fig. 5 shows, in enlarged view, the relation be- 40 tween the clamp I and the open front end of casing I. In order to positively maintain the clamp I in blade retaining position, the clamp is provided with a pairvof securing arms In, III, the latter being integral with the clamp and extending 5 from the edges thereof towards the side walls of the casing. The free ends of the extending clamp arms Ill, l0 are spring pressed against the casing walls by virtue of the construction of the two arms. That is to say, the arms are of thin maso terial and biased towards the casing walls.

By providing the free ends of the clamp arms with teats II, II, and the ends of the casing tween the clamp arms and the ends of the casing side walls. Since the ends of the casing side walls are constructed to be resilient and biased towards each. other, it will be seen that when the free ends of arms III, III are snapped into position against the ends of the casing walls, the clamp i will be firmly retained in the position shown in Fig. 2. In Fig. and Fig. 2 are shown the dimensional relations between the area of clamp plate I, the inclined open end of casing I and the blade positioned under the clamp. It will be observed that the plane of the open end of easing I is inclined at an angle of approximately 60 degrees with respect to the plane of the top wall, thus providing a correct shaving angle.

The blades 6 are actuated into cutting and storage positions by'the prisms 5, 5. Since the prisms are substantially similar in construction, only the prism 5 will be described in detail. It is to be clearly understood, however, that the member 5' is included in this detailed description. Figs. 8 and 9 show the construction of prism 5 in detail. It essentially'comprises a body having a triangular cross section. Each vertex I3 is provided with a plurality of spaced teeth l4; three'blade support faces l5 are thereby provided on each prism. Each'support face I5 is actually a blade guard, because it is provided with a row 'of teeth |4 adjacent to, and slightly under, the

cutting edge 6' of the blade 6 positioned on the support face.

In order to position the prisms 5 and 5' adjacent either end of casing I, each prism is provided with a pair of opposed collars l6 axially aligned. The collars l6 provided on the prism 5 are disposed in bearings provided in the front end of the side walls of the casing I, while the collars l6 of the rear prism 5' are disposed within the bearings l3 provided in the rear end of the side walls of the casing adjacent the rear wall I'. The bearings l1 and I8 are circular openings which may be provided in the side walls of the casing 1'. Each prism is further provided with a pair of axially aligned sprocket members l9, and it will be noted that each of these sprocket members has a substantially triangular configuration, as shown in Fig. 9. The purpose of this configuration is to keep each blade sufficiently away from the center of its prism, and yet sufliciently close to the vertices ofthe prism to allow proper clearance between the blade and the vertices and thus enable the blade to rest firmly on a support face I 5.

At the vertices of each of the sprocket members l8 there are provided pins 20'. These: pins are spaced substantially 120 degrees apart, and they function to convert the rotary motion of the prisms into linear movement of the. blade carrier elements. Between each sprocket member "I and the main body of each prism there is; provided a circular groove 2|, and the function of these grooves 2| is to serve as a means for permitting the spacer frame 8 to positively maintain the prisms in the position shown in Fig. 2. A knurled headed manipulating knob 22 may be rigidly secured to either of the prisms 5 or 5', and in Fig.- 1 this knob 22 is shown secured to the rear prism 5. However, and for convenience in manufacturing as well as assembly, this knob maybe secured to either end of either of the prisms 5 and -5'. To permit such choice of position for the knob 22, :here are provided in each of the prisms 5 and 5 a pair of threaded taps The knob 22 is provided, of course, with a threaded shank, so that the knob 22 may be screwed into any of the taps provided in the prisms 5 and 5'. The remaining taps 23 may also be used for securing the side walls to the prisms 5, 5 by the use of fiat head machine screws. From the details shown in Fig. 8 it will also be noted that the grooves 2| and the collars |6 are of substantially the same diameter.

In addition to the support provided for the prisms 5 and 5' by the bearings H and I6, there is provided auxiliary support by the spacer frame 8. The constructional details of the spacer frame are shown in Figs. 4, 6 and 7. From Fig. 6 it will be observed that the frame comprises a pair of spaced parallel members 30 and 3|, the lower member 3| being longer than the upper one. The members 30 and 3| are made of springy'sheet metal, and are integral with each other. as light as possible, a substantial portion of each In order to render the entire razor member and 3| is stamped out and, as shown I in Figs. 6 and 7, each of the members in actual construction is really a thin rectangular frame of springy metallic material joined together as at 3|. The ends of the members 30 and 3|, have secured to them pieces of felt 32 and 33. These felt pieces are inclined towards each other and, as shown in Fig. 6, when viewed from the side as in Fig. 2, furnish with the members 30 and 3| a substantially trapezoidalconfiguration. Each piece of felt not only functions as a blade wiper in a manner to be described below, but essentially serves as a barrier against moisture penetrating to the inner blades. Each .felt piece is provided with corner recesses to permit the ready passage of the blade carrier oelts. Thus, the felt wiper 32 is provided in its upper corners with re-.

cesses 34, and with recesses 35 in its lower corners. It will be noted that the members 30 and 3| arebent into the shape shown in Fig. 6 from a single blank, the free ends being bent towards each other as shown.

Similarly the felt wiper 33 is provided with spaced upper'corner recesses 36, and lower corner recesses 31. It will be noted from Figs. 2 and 4 that each inclined felt'wiper extends between the upper and lower walls of the casing and that the upper and lower edges of each felt wiper between the comer recesses are in substantial contact with the inner faces of the upper and lower walls of the casing and that the ends of the felt pieces are in contact with the side walls of the casing On the outer face of each felt wiper there is provided a pair of spaced braces or brackets. The braces 38 provided on the outer face of the felt wiper 32 function to cooperate with the grooves 2| provided in prism 5 to positively retain. this prism in its position. Each of the braces 38, and this detailed description applies with equal force to the braces 39 provided on the outer face of the felt wiper 33, is constructed of a flat sectional metallic band. The sectional band, in the case of each brace, is bent into a configuration as shown in Fig. 6, and it will be observed that each brace comprises a substantially arcuate portion to the upper and lower walls of the casing, as poslower rolled ends 4 The function of these rolled ends is to keep the belts as far apart, and as close sible. In this way sufficient space is provided inprism 5 contacts with the inner face of clamp I, and the prism 5 is still further rotated in a clockwise direction, the pressure against the inner side the casing to house a container of shavin cream or the like.

It will be observed that each of the braces is provided with the rolled ends 4 I, and that each of the braces 39 is provided with similar rolled ends ll Upper and lower bolts 42 may be used to 'secureeach brace to a felt wiper, as well as to the immediately adjacent portions of the members "and 3|. Each pair of braces 38 and 39 may be shaped out of a single blank of sheet metal, and the rolled ends of the braces then be formed from the horizontal edges of the blank.

The blades 6 extend substantially between the side walls of casing I, as shown in Fig. 1, and are secured at opposite ends to a pair of endless belts 50, 5|. The belt is provided with a plurality of spaced apertures 52 whichregister with the pins 2Ii-provided on the sprocket members of prisms 5 and 5. Similarly, a plurality of spaced apertures 53 are provided in the belt 5|, and these apertures are used for a similar function. It will be noted from Fig. 1 that the end of each of the blades 5 is secured to its belt between a pair of successive apertures. Each end of a blade 6 may be secured to its belt by any well known means, as by riveting, and it is to be understood that the numeral 54 denotes the se'curing means, such as a. rivet, for rigidly securing one end of a blade 5 to belt 5|, whereas the numeral 55 denotes the securing means which retains the opposite end of the blade on the belt 50.

Each blade is provided with a single edge 5', and its cutting position is shown in Fig. 5 and Fig. 2. It will now be seen that when the knob 22 -is actuated, as in a clockwise direction, theprism 5' is rotated in a similar direction, and the pins 20 mountedupon its sprocket members register with the apertures 52 and 53 to move the belts in a clockwise direction. This results in the replacement of one blade by the blade immediately below it on prism 5. Each of the belts 50 and 5| travels through the recesses 34, 25, I8 and ll of.

the felt pieces 32 and 33. The dimensional relationship between the width of each belt 50 and 5 I and the recesses in the felt wipers is clearly shown in Fig. 4, and it will be further noted that the inner edges of the members 30 and 3| extend somewhat beyond the recesses in the felt wipers.

Because of this construction, each ,blade is pulled through the felt wipers 32 and 38, as the belts move in a clockwise direction. In other words. and considering the blade 8 immediately preceding the felt wiper 32 in Fig. 2, assume that the knob 22 has just been rotated- This will result in the blade under consideration being pulled towards the upper edge of the felt wiper 32, and

it will be seen that the said upper edge of the felt wiper will be pressed forward. Afunction of these felt wipers will, therefore, be seen to consist in absorbing the moisture from the blades as the blades are pulled over the edges of the wiper. Of course, the primary function of the felt spacers is to allow the blades to go through as close as possible to the casing walls, thereby to create space inside the casing, without marring the edges of the blades. aswellas to keep moisture away from the inner blades.

The vertices I3 of the front prism 5, besides functioningas blade guards, additionally function as a cam member forpushing the blade clamp I a sufllcient distance away from the elements associated with prism 5, so that a new blade may be readily substituted for an old blade without face of clamp I will result in uncoupling of the arms III, III from the side walls of casing I. Of course, the free ends of arms III and III are of suilicie'nt length to remain biased against the side walls of easing I even when the clamp I ispushed forwardly to its most extreme position. When the new blade has been moved into position, it is merely necessary to press down on the outer face of clamp land push the arms I II and I0 back to its original position. The free ends of these arms will snap into positive coupling with the side walls of casing I, because of the snap coupling II, I2 and I I, I2, due to the springy construction of the arms and the side walls of the casing.

Additional means is provided for positively maintainingthe prisms 5 and 5' in desired position, such as for example shown in Fig. 2. The detailed construction of this additional means is shown in Figs. 8 and 9, and it will be noted that the outer face of each sprocket member I9 is provided with three spaced depressions 60. These vo'f prism 5 there is provided the snap member 6|. Due to the spring construction of the ends of the side walls of easing I, and the normal bias of these walls towards the ends of prism '5, as well as prism 5', the three protuberances SI on the inner face of the side .walls of easing I adjacent the depressions will snap into their corresponding depressions, as for example when the prisms are in the position shown in Fig. 2.

Such snap protrusions may be provided on the side walls of the casing by punching, or any other operation. ,When the knob 22 is rotated, the snap couplings between the depressions 50 and the outer face of the sprocket members of prism 5' will be broken, and through the medium of the belts 50 and 5I similar uncoupling force will be applied to the prism 5. It is tobe un; derstood, however, that there is suflicient resiliency imparted to the side walls of casing I to force the protrusions BI into snap position when a blade 5 is in cutting position and the clamp I has been'snapped into clamping location.

It will now be seen thatthe present safety razor construction enables the user to utilize a given blade 5 as long as he desires. As soon as a' new blade is desired the knob 22 is rotated in clockwise direction, and this results in one of the vertices I3 pushing the clamp I into its most extreme position, and a new blade is presented on a new blade support face of the prism 5. The

.clamp I. is then snapped back into position, and

the blade may be used as long as desired. As many as thirty, more or less as desired, blades may be'provided on the two belts, and these blades, because of the endless belt construction, can be used over and over. again. It will be realized at this point that one of the advantages of the present construction resides in the fact that there is always a blade 6 positioned for shaving. Thus, the person using the razor need never find himself without any blades to use.

the existing type of safety razor.

When the blades are all dulled the entire razor construction is thrown away, and a new razor is purchased with a fresh magazine of blades within the casing all in one unit.

The economical construction of the present razor is such that it is cheaper to buy an entire new razor with its magazine of blades, than to purchase a new supply of blades alone for By splitting the casing l centrallyv in two parts, along the sides, and hinging one side, the casing can be made permanent and a reload of blades inserted in position. This construction may be preferred for razors wherein the casing I is of expensive material, such as gold, and it is only desired to replace an old group of blades by a new group. It is pointed out that it is a relatively simple matter to assemble the belts, prisms and frame for insertion within the casing I, and this is accomplished by clamping the members 30 and 3| towards eachother and sliding the frame endwise between the prisms andthe belts.

Release of the clamping force results in 'the assembly shown in Fig. 2. The belts will not only be tightly spaced, but the prisms 5 and. 5 will be retained in their positionas shown in Fig. 2. The assembled sub-unit is then inserted in proper position in the casing l.

Various modifications may be made in the construction shown in Figs. 1 to 9 inclusive. For example, air circulation apertures may be provided at various points in the casing I, and preferably between the felt pieces and the casing ends. Again, the rear wall I of the casing may be replaced by a construction similar to that shown at the cutting end of the razor, and in this way a double headed razor will be provided. In that case each blade can then be provided with a double edge. Also, a hood will be prov ded for the operating head.

The blades and blade carriers may-be modified in any desired manner, and several such modifications are shown in Figs. 10, Hand 12. In Fig. 10, for example, the blades are shown as having recesses cut in their corners whereby the carrier belts Ill and II have secured to them the extensions 12 and 13 of each blade 14. In this form of construction the belt is driven by means of the sprocket members described heretofore, and the apertures provided in each belt.

In Fig. 11 is shown a modification of the construction shown in Fig. 10, wherein the blades are integral with the belts III and H, the blade I4 being integral, as at I2, with the belts. In this form of construction the belt and blade may be stamped out of the steel band sheeting used to manufacture blades. Of course, in any of these modifications the blade is preferably of rustless steel. v

In Fig. 12 is shown, only in sectional form for simplicity of description, another modification wherein the blade 80 is riveted at its ends to the carrier belts 8| and 82, the inner faces of the belts being provided with spaced pins 88 and 84. These pins are provided in registration with the rivets securing the blades to the belts.

' The pins and rivets can be integral, if desired.

struction of the prism is substantially the same as shown in Figs. 8 and 9.

Thepivoted. clamp i 'may be replaced by a clamp member I which is integral with, or fixedly attached to, the top wall of easing I. Furthermore, the manual operating knob 22 may be amxed to the prism 5, and in Fig. 14 these modifications are illustrated. Because of the resilient construction of the clamp member 1, a vertex l3 of prism 5 will push the inwardly biased clamp 7' to the left, and retain the clamp in such displaced position as a new blade with its new support surface I 5 is moved into shaving posi- -tion, the continued upward movement 'of the vertex I3 then resulting in a gradual movement of the clamp I to its clamping position. Since the remaining elements in this modification of the invention are the same as in Figs. 1 and 2, such elements are not included in Fig. 14.

Figs. 15 and 16 show still another modification of the invention wherein only a single prism is employed. Three blades are shown used in this construction. 0f course, the number of blades used depends on the number of support faces. Basically, however, the construction is the same as that shown in connection with the prism 5 in Figs. 3, 5, 8 and 9. That is to say, the prism 90 corresponds to the prism 5 in Fig. 3 and the blades 9| are secured to the three faces of the prism. Any desired means, such as rivets or locating pins, can be used to secure the blades.

The operating knob 92 is rigidly secured to,

the prism 90 by means of the snapconstruction collars l6, and the pins 20 are eliminated in this form of the construction, but the depressions and the protrusions 8| are retained. A clamp member 93 is pivoted to the top wall of the casing 94, and the two snap fastener arms 95 are employed as in the case of Fig. 5. The numeral 96 denotes the handle of this form of razor. The vertices 91 of the prism 90 are provided with the spaced teeth. This compact form of razor is used in the same manner as described heretofore. The knob 92 when moved in clockwise direction results in a vertex 91 pushing the clamp 88 away from clamping position, and a new blade is moved into shaving position. When this new blade is in position the clamp 93 is pushed towards its normal clamping posi ion, and the arms 95 snap back into their normal position.

While I have indicated and described several arrangements for carrying my invention into effect, it will be apparent to one skilled in the art that my invention is by no means limited to the particular constructions shown and described, but that many modifications may be made without departing from the scope of my invention, as set forth in the appended claims.

' blade carrying member revolvably mounted in said casing, a plurality of blades associated with the member, said member having a prismatic configuration and having its edges provided with a plurality of slots to form a plurality of combs, means for positively maintaining said member fixed with respect to said casing when 'a blade is in cutting position, and additional means for moving said prismatic member through an arc whereby an edge thereof displaces said clamp into a position to permit a new blade to move into the position of a used blade.

. 8,146,980 2. A safety razor comprisinga casing with an opening in one side with a movable blade clamp arranged adjacent said opening, a multi-faced member revolvably mounted in said casing, a

blade disposed on at least one face of said member, additional blades provided in said casing,

said member being provided with a plurality of blade guard edges, each edge being adapted to locking said member in shaving position when a go 5. In combination, in a safety razor, a casing blade is positioned under the clamp.

provided with at least one opening, an adjustable member provided with at least two blade support faces and at least one row of blade guard teeth at the linepof intersection of said faces, said member being revolvably mounted between the walls of said casing adjacent said opening, a

second member disposed within the casing adjacent the end opposite to the said opening,a pluralitypf razor blades, a pair of belts coupling the said two members whereby adjustment of one of the members imparts motion to the other through I saidbelts, said blades being secured to the belts in spaced relation, one of the faces of said first member being positioned in shaving position when one of the blades is in contact therewith, 'a blade clamp secured to said casing, detachable means for positively maintaining the clamp in contact with said one blade, and means for revolving said first member to replace said oneface and the blade thereon by a second face and a new blade.

6. In a safety razor combination, as defined in claim 5, the path of said guard teeth being such that adjustment of the adjustable member results in said clamp being detached from said casing, and a spacer frame disposed within said casing to maintain the belts spaced apart.

'the belts, and auxiliary means in end thrust contact with the said two revolvable members.

9.Inarazorasdeflnedinclaim5.atleast -two moisture barrier sheets disposed within the casing; each sheet being positioned adjacent a revolvable member. v v .10. A safetyrazor comprising a casing provided with an opening in one side thereof, a blade clamp arranged adjacent said opening, a multi-faced blade carrier member disposed within the casing, a blade disposed on at least one mere: said member, additional'bladesprovided in said casing, and said member being provided with a plurality of blade guard edges.

. 11.1narazorasdeflnedinclaim10, atleast one moisture barrier sheet disposed'within the.

casing adjacent said carried member.

12. A safety razcr comprising a casing provided withan opening in at least one side thereof, a blade clamp arranged adjacent the opening, a blade carrier member disposed within the casing adjacent the opening, a plurality of blades associated with the carrier member, said member having a plurality'of blade receiving faces, and the edges of intersection of said faces being provided with blade-guard teeth.

13. In a razor as defined in claim 12, means for positively maintaining the said blades in spaced, parallefrelation, and additional means for producing relative movement between the blades and casing.

14. A blade supply magazine for a safety razor comprising a pair of endless belts arranged parallel to each other, and a plurality of spaced blades secured to said belts and all the blades being parallel to each other, and each belt being provided with a plurality of spaced apertures adapted to receive belt driving means.

15. A safety razor including a multi-faced blade carrier member, a blade disposed on each face of said member, said member being provided with a plurality of blade guard edges, a blade clamp arranged in clamping position adjacent at least one' of said blades, said carrier member having at least three faces, and, said guard edges being'provided at the lines of intersection of said faces.

'16. In a safety razor as defined in claim 12, at least one moisture barrier sheet disposed within the casing adjacent said carrier member.

'17. A blade supply magazine for a safety razor comprising a pair of. endless belts arranged parallel to each other, and a plurality of spaced blades secured to said belts and all the blades being parallel to each other, rivet means securing each blade between said belts, and said rivet means extending substantially beyond the belts to permit said rivet means to engage belt driving means.

18. A, safety razor including a multi-faced blade carrier member, a blade disposed on each i being provided at the lines of intersection of said faces, and means for revolving said carrier memberabout an ails to replace a used blade by a new blade.

:19. A safety razor comprising a rotatable multi-faced'blade carrier member having at least two carrier faces, each of the faces being provided with a blade guard edge, said edges being spaced from each other. from the width of a carrier face, and a blade disposed on each of the said carrier faces, the blades being positioned to have all cutting edges thereof in thedirection of the rotation of the carrier member, the cutting edge of each blade being positioned in contact with its respective guard edge but not extending beyond it.

20.'A razor comprising a, revolvable multifaced blade carrier member, said member being provided witha plurality of blade guard edges provided at the lines of intersection of the carrier faces, successive edges being. spac'ed by the width of a carrier face, and means adapted to clamp a blade in cutting position on its carrier ace.

21. A razor comprising a revolvable multifaced blade carrier member, said member being provided with a plurality of blade guard edges provided at the lines of intersection of the carrier faces, successive edges being spaced by the width of a carrier face, means adapted to clamp a blade in cutting position on its carrier face, and additional means for revolving the carrier member with respcet to said clamping means.

in contact with its respective guard edge but not extending beyond it, eachof said blades being substantially permanently secured to its respective carrier face whereby after usage the carrier and blades may be discarded as a unit.

23. A safety razor comprising a multi-faced blade carrier member, said faces being provided with a guard edge at the line of intersection of successive faces, a blade provided for each of at least two successive faces, means for rotating the [carrier member, and the blades being positioned to have all the cutting edges thereof in the direction of rotation of the carrier member.

. BERNARD E. DAVIS. 

